Excitation Cross Section for Helium Atoms. II

1 March 1953

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 89 (5) , 1093-1095
https://doi.org/10.1103/physrev.89.1093

Abstract

The excitation scattering of electrons from helium atoms is investigated for the case of transition to the first excited singlet metastable level in order to examine quantitatively the error introduced by the fact that the description of the helium target is only approximately known. The cross section is calculated in Born approximation using formally equivalent matrix elements which weight the wave functions differently in space. The shape of the total cross section-energy curve is the same although absolute values differ while the angular distributions are considerably different.

Keywords

This publication has 4 references indexed in Scilit:

Excitation Cross Section for Helium Atoms
Physical Review B, 1952
On the Continuous Absorption Coefficient of the Negative Hydrogen Ion
The Astrophysical Journal, 1945
The collision of slow electrons with atoms. III.—The excitation and ionization of helium by electrons of moderate velocity
Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1933
Energies and Wave-Functios of the State (1s)(2s)1S in Helium-like Atoms
Physical Review B, 1931